Here's the breakdown for the castle destruction shot.…We'll be using all this various footage and…these various steps to create a final version.…The shot starts with a rather boring piece of…video footage of a real castle, shot during the day.…It goes on to include video stock footage of specific effects,…like this fireball, It also incorporates still photography like this stormy sky.…Then it gets…interesting by including renders created in Maya.…In this case, a fluid dynamic explosion.…

There's other simulations, too, custom ones that mimic parts…of the castle, like this breaking wall that has smoke.…Some simulations are designed for large pieces, and other…ones are designed for small parts like these bricks.…Others are hand animated to replicate even larger sections…of the castle, then there's additional simulations…that replicate certain features like this tower.…There are also CG renders of set dressing items, such as torches and flags.…

Eventually all these various layers are converted to 3D and arranged in…